인프런 커뮤니티 질문&답변

항상 감사합니다. 

 

아래 코드에서 

List<Member> members = findMember.getTeam().getMembers();

이 부분에 나가는 쿼리가 

Hibernate: 

    select

        team0_.TEAM_ID as TEAM_ID1_1_0_,

        team0_.name as name2_1_0_ 

    from

        Team team0_ 

    where

        team0_.TEAM_ID=?

 

이거 더라구요..

저는 List<Member> 니까 Member를 들고 올 거라고 생각했는데, select 문 보니 team 이었습니다... 

그러고 List<Member> 를 for 문으로 돌려보니 이제서야 select Member 쿼리가 나가더라구요.. 

왜 그렇죠..??

 

// 조회
System.out.println("======find Member =====");
Member findMember = em.find(Member.class, member.getId());
System.out.println("======find Team Name ==== ");
List<Member> members = findMember.getTeam().getMembers();
System.out.println("======print Team member ==== ");

for (Member m : members) {
    System.out.println("m = " + m.getName());
}

System.out.println("======end ==== ");

======find Member =====

Hibernate: 

    select

        member0_.MEMBER_ID as MEMBER_I1_0_0_,

        member0_.USERNAME as USERNAME2_0_0_,

        member0_.TEAM_ID as TEAM_ID3_0_0_ 

    from

        Member member0_ 

    where

        member0_.MEMBER_ID=?

======find Team Name ==== 

Hibernate: 

    select

        team0_.TEAM_ID as TEAM_ID1_1_0_,

        team0_.name as name2_1_0_ 

    from

        Team team0_ 

    where

        team0_.TEAM_ID=?

======print Team member ==== 

Hibernate: 

    select

        members0_.TEAM_ID as TEAM_ID3_0_0_,

        members0_.MEMBER_ID as MEMBER_I1_0_0_,

        members0_.MEMBER_ID as MEMBER_I1_0_1_,

        members0_.USERNAME as USERNAME2_0_1_,

        members0_.TEAM_ID as TEAM_ID3_0_1_ 

    from

        Member members0_ 

    where

        members0_.TEAM_ID=?

m = member1